Cataplexy manifests itself as muscular weakness which may range from a barely perceptible slackening of the facial muscles to the dropping of the jaw or head, weakness at the knees, or a total collapse. Usually the speech is slurred, vision is impaired (double vision, inability to focus), but hearing and awareness remain normal. These attacks are triggered by strong emotions such as exhilaration, anger, fear, surprise, orgasm, awe, embarrassment, and laughter. Cataplexy may be partial or complete, affecting a range of muscle groups, from those controlling facial features to (less commonly) those controlling the entire body. [2]

Arm weakness
Sagging jaw
Drooping head
Slumping of the shoulders
Slurred speech
Generalized weakness
Knee buckling
When cataplexy happens often, or cataplexy attacks make patients fall or drop things, it can have serious effects on normal activities. It can cause accidents and be embarrassing when it happens at work or with friends. For example, narcoleptics may not pick up babies because they are afraid they may drop them